COMDTINST 4130.6
21 SEP 1995
d CM provides the capability to know the definitive baseline or "benchmark" knowledge of
the current configuration of CIs. CM may be implemented at any point in time during the
acquisition, sustainment or disposal phase of an asset/platform. However, the earlier this
occurs in the acquisition phase the better.
e
CM uses three configuration baselines to identify and document design information for the
platform and lower level components/items designated for CM. The three configuration
baselines are the Functional Baseline (FBL), Allocated Baseline (ABL) and Product
Baseline (PBL).
(1) Functional Baseline. The FBL describes the performance requirements of the platform
and major subsystems. This is done in the acquisition phase of the life cycle and is the
"design to" requirement. CM is normally implemented when the FBL is established.
(2) Allocated Baseline. The ABL describes the design requirements of the platform and
major subsystems. This is done in the acquisition phase of the life cycle and is the
"develop to" baseline.
(3) Product Baseline. The PBL is the "build to" (during acquisition) and "maintain to"
(during sustainment) description of the platform.
7. DEFINITION OF A CONFIGURATION ITEM (CI).
a
The focus of CM is to provide appropriate identification and control of CIs during the life
cycle phases of a platform, equipment, or system.
b A CI is an aggregation of hardware, software, or both; or any of its discrete portions, which
satisfies an end-use function, and is either maintenance worthy, or engineering/logistics
critical, and is designated for CM. Enclosure (2) provides an expanded and more detailed
definition of a CI.
c
CIs vary widely in complexity, size and type, i.e., a facility, Hardware Configuration Item
(HWCI) or Computer Software Configuration Item (CSCI). A HWCI may be an aircraft,
minicomputers, microcomputers and peripherals, vehicles and their components
(mechanical, electrical, electronic, hydraulic, pneumatic). A CSCI may be an operating
system, office automation, application software or Information Resource Management
(IRM) system. Unless it is necessary to specify HWCI or CSCI, the acronym "CI" is used
generically to include hardware and software components of a platform, equipment, air
station, shore facility, system, etc. when designated for CM.
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